Means for checking side slip of road-vehicles.



PATENTED OCT. 29. 1907.

W. EQ MONDO.

MEANS EOE DEEDKING SIDE SLIP 0E EDAD VEEISLES.

APPLIDATIDN FILED JAN. 21, 19o?. l a SHEETS-SHEET 1.

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PATENTED 00T. 29. 1907. W. E.' MoNRo. MEANS FOR UHBGKING SIDE SLIP 0F ROAD VEHICLES.

APPLICATION FILEDJAN.21,1907.

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PATENTED OCT. 29, 1907.

' W. E. MONRO.

MEANS FOR GHEGKING SIDE SLIP 0F ROAD VEHICLES.

APPLICATION FILED JAN. 21, 1907.

3 SHEETS-SHEET 3.

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WILLIAM ERNEST MONRO, OF LONDON, ENGLAND.

MEANS FOR CHECKING SIDE SLIP OF ROAD-VEHICLES.

Speeeation of Letters Patent.

Patented Oct. 29, 1907.

Application tiled January 2l, 1907. Serial No. 353,333.

To all whom it may concern:

Be it known that I, WILLIAM Enxns'r MoN no, a subject of the King ol' Great Britain and Ireland, residing at London, England, have invented Improved Means for Arresting or Checking Side Slip oi Road-Vehicles, oi which the `following is a specitication.

This invention relates to means l'or arresting or checking side slip oi the wheels ot road vehicles initiated from any cause such as the so-called greasy state oi the roads.

According to this invention one or more auxiliary and resiliently mounted wheels is or are employed which although not primarily adapted to assist in carrying the load of the vehicle will be affected thereby and held in contact with the road suri'ace willi a variable force, the tread oi'l the wheel being comparatively broad and adapted to normally run true upon the roadway and to be tilted automatically to a limited extent when the vehicle slips or skids sidewise so as to run upon one edge which on account ol' its sharpness and the increase in weight thereon due to the displacement of a part oi `greater length than the part normally perpendicular to theroadway trom one inclined position to a position more nearly approaching the perpendicular, will efiectually arrest the side slipping action before any appreciable el'lect is noticeable. \\'l1en the ,I slipping tendency ceases, the wheel returns to the normal position automatically ready to be brought into action again as soon as occasion arises.

The accompanying drawings illustrate several constructions embodying the invention, Figure l being a iront elevation, Fig. 2 a plan, Fig. 3 a sectional iront view and Fig. Ai a sectional side view oi the preferred arrangement, Figs. 5 and G are views similar' to Fig. I of two modified arrangements.

In the example accordingto Figs. I to si, a is a wheel formed oi or with two metal rims or disks b spaced apart upon a suitable axle c and having their peripheries on the inner edge bl rounded or beveled so as to presenti more or less sharp outer edges bl to the roadway. The space between the rims or disks b is preferably occupied by a resilient tire or ring c3 so that when pressure is applied to the axle c the edges e2 oi the rims or disks b bear lightly upon or are just clear ol' the roadway. The axle c oi' the wheel is mounted within the tree ends oi a iork or yoke (Z carried by or upon a hinge pin e arranged longitudinally ol the vehicle and mounted in an appropriate box f capable or' vertical displacement within a saddle or bracket y secured to the underside of the vehicle say to the axle i, i'or which purpose the saddle or bracket g is lormed with a tlanged housing g1 to receive the axle 71 and provided with a retaining cover or plate g2, Springs j are located between the box f and the saddle or bracket g. The box f is as shown, orrned interiorly or provided with extensions f1 serving as stops or buffers to limit the tilting movement oi' the wheel a and iork rl; and in order to relieve the axle c oi stress-when the wheel (l. is running on edge, small antil'riction rollers may be titted to the iork (l with their axes parallel to the limbs dl so as to engg'e the outer laces ol' the wheel rims or disks b. lhe box j' acted on by tho springs and to which the wheel a and iork d are hinged, is wholly guided by the saddle. or bracket y.

In practice it is prel'erred to arrange a wheel according to this invention i'or each pair ol road wheels located midway therebetween, although in some cases one wheel will sullice i'or the whole vehicle while in other cases it may be desired to employ more than two.

Fig. Vl shows the wheel uy in the out-ot-aetion position, the tire c and rims or disks b revolving in a vertical plane. Immediately there is any movement ot' the vehicle transversely to the direction in which the same is normally traveling the irictional drag on the tire e, or it may be upon the rims or disks b it the load on the vehicle is suilicient to cause the latter to normally bear lightly upon the roadway, will cause the wheel a to oseillate about the hinge pin e until arrested by one or other ofthe stops f1 when it will assume the position indicated in Fig. 3 where the line marked l, greater in length than thc perpendicular line 2, having become displaced to a position more nearly perpendicular than in Fig. l, illustrates that the 'pressure exerted on the rim or disk l) in Contact with the roadway has increased. In this condition iurther tendency ol the wheel, and consequently the vehicle, to slip or skid sidewisc is arrested.

In lieu ol' locating the resilient spring device between the wheel i'ork and saddle as in the Ioregoing example, the said iork might be hinged or pivoted directly to said saddle and the spring or other resilient device interposed between the saddle and the vehicle l'rame. Such a modilication isshown in Fig. 5 where the saddle or bracket g is provided with guide bars yi* adapted to slide in a member y between which and the lop oi the said saddle or bracket. g the springsj are arranged. In this case the saddle or bracket g is l'ormed with the limiting extensions or stops j". As will be obvious the wheel u mighty possess a plain cylindrical surface oi comparatively large width which when displaced will present a sharp edge to the roadway, as is i'or instance shown in Fig. (i, the resilient tire c being dispensed willi.

What l claim isz 1. In a road vehicle, means t'or arrestingl sidewise movement thereol' comprising a member mounted to oscillnte about an axis arranged longitudinally ot the vehicle and carrying` a wheel havingl sharp outer edges normally inactive upon the roadwa)Y but adapted to operatively engage the same when the wheel is tilted by sidewise movement ol the vehicle.

2. In a road vehicle, means for arresting Sidcwise movement thereof comprising a wheel normally revolving in a vertical plane, and having sharp edges normally inoperative upon the roadwa a carrying member for such wheel, a pin arranged longitudinally of the vehicle upon which the carrying member' is hinged or pivoted so that it can tilt or oscillate and stops for arresting the wheel in a position where one or other of the sharp edges is operative upon the roadway.

1:2, In a road vehicle, means for arresting sidewise movement thereof comprising a wheel normally revolving in a vertical plane and having sharp edges normally inoperative upon the roadway, a cari Ying member for such wheel, a pin arranged longitudinally of the vehicle upon which the carrying member is hinged or pivotcd so that it can tilt or oscillate, a device supporting said pin, means for yieldingly carrying the supporting device from the vehicle and stops for arresting the wheel in a position where one or other of the sharp edges is operative upon the roadway.

i. In a road vehicle, means for arresting sidewise movement thereof, comprising a wheel having a tread normally bearing on the roadway and sharp edges normally inoperative on such roadway, a car ving' member for said wheel, a pin arranged longitudinally of the vehicle upon which the carrying member is hinged or pivotcd so that it can tilt or oscillate when sidewise movement occurs, a device supporting said pin, resilient means for car 'ng the supporting device fronrthe vehicle and stops arranged to arrest the wheel in a position where one or other of the sharp edges is operative upon the roadway.

5. In a road vehicle, means for .arresting sidew ment thereof comprising a wheel, having a compara 'vely wide tread and sharp outer edges normally running true upon the roadway, a ca ing member therefor pivoted to a member resiliently connected to the vehicle and adapted to be oscillated to a limited extent, when sidewiso movement occurs, to cause the wheel to run on one or other sharp edge.

G. In a road vehicle, means for arresting sidewisc movement thereof, comprising a wheel, having a comparatively wide tread and sharp outer edges normally running true upon the roadway. an oscillating member carrying said wheel which is rcsiliently connected to the vehicle between the ordinary carrying wheels thereof and means for arresting the wheel in a tilted position where it is caused to run on one or other sharp edge.

T. In a road vehicle, means for arresting sidewise Inovement thereof, compi sing a wheel normally ruiming true upon the roadway having a comparatively broad tread part of which is resi ient, a carrying member therefor, a pin arranged longitudinally of the vehicle upon which the carrying member is hinged or pivoted so that it can tilt or oscillatc when sidewise movement occurs, a device supporting said pin, resilient means for carrying the supporting device from the vehicle and stops arranged to enable the wheel when tilted to run on a portion of the tread which is new resilient.

S. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a .subsidiary wheel having sharp outer edges normally inoperative upon the roadway but adapted when the wheel is tilted to engage such roadway; an oscillating' carrier for such wheel, a device capable of vertical displacement to which the wheel carrier is connected and resilient means between the vertically moving device and the underside of the vehicle.

.i. In means for arresting sidewise movement oi' a road vehicle. the combination with the carrying wheels of a subsidiary wheel having sharp outer edges normally inoperative upon the roadway but adapted when the wheel is tilted to engage such roadway. an oscillating carrier for such wheel, a device capable of vertical displacement to which the wheel carrier is connected, antifriction means between the wheel and the carrier, and resilient means between the vertically moving device and the underside of the vehicle.

10. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a subsidiary wheel having sharp outer edges normally inoperative upon the roadway but adapted when the wheel is tilted to engage such roadway an oscillating carrier for the wheel, a device capable of vertical displacement to which the wheel carrier is hinged or pivoted longitudinally, a bracket secured to the vehicle and springs located between the vertically moving device and the said bracket.

11. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a subsidiary wheel having a comparatively broad tread and sharp outer edges normally inoperative but adapted when the wheel is tilted to engage such roadway an oscillating carrier for the wheel, a box to which the said carrierl is hinged or pivoted longitudinally of the vehicle, a bracket secured to the vehicle within which the box aforesaid is arranged and adapted to move vertically and springs interposed betwcen the said box and bracket.

12. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a subsidiary wheel, having sharp outer edges normally inoperative upon the roadway but adapted when the wheel is tilted to engage such roadway, a carrying fork for the wheel, a box to which the fork is connected, a hinge pin effecting said connection arranged longitudinally of the vehicle, a bracket secured to the axle of the vehicle within which the box aforesaid is mounted to slide vertically, springs interposed between the top of the box and the underside of the bracket and stops formed in the box for arresting the wheel cari-ying fork in a position such that the wheel can run on either of its sharp edges.

13. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a subsidiary wheel, a carrying fork therefor, a box to which the Iork is connected by a hinge pin arranged longitudinally of the vehicle, a bracket secured to the axle of the vehicle within which the box aforesaid is mounted to slide vertically, springs interposed between the top of the box and the underside of the bracket, stops formed in the box for limiting the extent to which the nwheel carrying fork can be oscillated and antifriction rollers between the sides of the subsidiary wheel and fork for reducing stress upon the wheel axle when the wheel is running on. edge.

l-i. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels of a subsidiary wheel comprising outer metal rims or disks and an interposed resilient ring or tire, an oscillating carrier for said wheels, a device capable of vertical displacement to which the wheel carrier is connected, and resilient means between the vertically moving device and the underside of the vehicle.

15. In means for arrestinT sidewise movement of a i'oad vehicle., the combination with the carrying wheels, of a subsidiary wheel, comprising outer metal rims or disks and an interposed resilient ring or tire, an oscillating carrier for said wheel, a device capable of vertical displacement to vwhich the wheel carrier is connected, antifriction rollers between the wheel and the carrier, and resilient means bctween the vertically moving device and the underside of the vehicle.

lo. In means for arresting sidewise movement of a road vehicle, the combination with the carrying wheels, of a subsidiary wheel comprising outer metal rims or disks and an interposed compressible ring or tire, a carrying fork for said wheel, a box to which the fork is connected by a hinge pin arranged longitudinally of the vehicle, a bracket secured to the axle of the vehicle within which the box aforesaid is mounted to slide vertically, springs interposed between the box and bracket, stops formed in the box for limiting the extent to which the wheel carrying fork can be oscillated, and anti-friction rollers between the sides of.

the subsidiary wheel and fork for reducing stress upon the wheel axle when the wheel is running on edge.

Signed at London England this 8 day of January 1907.

WILLIAM ERNEST MoNRo.

Witnesses z (lnas. H. Sinrsox, II. GORDON LniGiI. 

